People in Groups
![Updated by an Factmonster Editor on February 21, 2017](/themes/ip/images/info-circle.png)
Aristocracy: A society or group of people ruled by the upper class.
Democracy: A form of government in which the people hold power. People can either exercise the power or elect officials to do so.
Gerontocracy: A society or group of people in which older people are the most powerful.
Matriarchy: A society or group of people in which women are the most powerful.
Oligarchy: A society or group of people in which only a few people hold power.
Patriarchy: A society or group of people in which men are the most powerful.
People in Families
A nuclear family is made up of parents and their children.
An extended family includes parents, children, grandparents, and/or aunts, uncles, and cousins in the same household.
A blended family is formed when one single parent (divorced or widowed) marries another single parent.